10020102021901 has 2 divisors, whose sum is σ = 10020102021902. Its totient is φ = 10020102021900.

The previous prime is 10020102021887. The next prime is 10020102022067. The reversal of 10020102021901 is 10912020102001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9170661456100 + 849440565801 = 3028310^2 + 921651^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020102021901 - 2¹¹ = 10020102019853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020102021401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010051010950 + 5010051010951.

It is an arithmetic number, because the mean of its divisors is an integer number (5010051010951).

Almost surely, 2^{10020102021901} is an apocalyptic number.

It is an amenable number.

10020102021901 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020102021901 is an equidigital number, since it uses as much as digits as its factorization.

10020102021901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 10020102021901 its reverse (10912020102001), we get a palindrome (20932122123902).

The spelling of 10020102021901 in words is "ten trillion, twenty billion, one hundred two million, twenty-one thousand, nine hundred one".